Home / 4,101.77-5,667.84-2,920.79

Finding the Fourth Proportional to 4,101.77, 5,667.84 and 2,920.79

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Solution

The fourth proportional to 4,101.77, 5,667.84 and 2,920.79 is: 4,035.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,101.77 : 5,667.84 = 2,920.79 : x
  2. Step 2: Convert to fraction form
    4,101.77/5,667.84 = 2,920.79/x
  3. Step 3: Cross multiply
    4,101.77x = 5,667.84 × 2,920.79
  4. Step 4: Simplify right side
    4,101.77x = 16,554,542.05
  5. Step 5: Solve for x
    x = 16,554,542.05/4,101.77
  6. Step 6: Final answer
    x = 4,035.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.